Home / 124,230.78-171,438.87-67,642.50

Finding the Fourth Proportional to 124,230.78, 171,438.87 and 67,642.50

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Solution

The fourth proportional to 124,230.78, 171,438.87 and 67,642.50 is: 93,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,230.78 : 171,438.87 = 67,642.50 : x
  2. Step 2: Convert to fraction form
    124,230.78/171,438.87 = 67,642.50/x
  3. Step 3: Cross multiply
    124,230.78x = 171,438.87 × 67,642.50
  4. Step 4: Simplify right side
    124,230.78x = 11,596,553,763.98
  5. Step 5: Solve for x
    x = 11,596,553,763.98/124,230.78
  6. Step 6: Final answer
    x = 93,346.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.